1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
-- Copyright 2008 Steven Barth <steven@midlink.org>
-- Copyright 2008 Jo-Philipp Wich <jow@openwrt.org>
-- Copyright 2013 Manuel Munz <freifunk at somakoma dot de>
-- Copyright 2014 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
-- Licensed to the public under the Apache License 2.0.
module("luci.controller.ddns", package.seeall)
local NX = require "nixio"
local NXFS = require "nixio.fs"
local DISP = require "luci.dispatcher"
local HTTP = require "luci.http"
local UCI = require "luci.model.uci"
local SYS = require "luci.sys"
local DDNS = require "luci.tools.ddns" -- ddns multiused functions
local UTIL = require "luci.util"
DDNS_MIN = "2.4.2-1" -- minimum version of service required
function index()
local nxfs = require "nixio.fs" -- global definitions not available
local sys = require "luci.sys" -- in function index()
local ddns = require "luci.tools.ddns" -- ddns multiused functions
local verinst = ddns.ipkg_ver_installed("ddns-scripts")
local verok = ddns.ipkg_ver_compare(verinst, ">=", "2.0.0-0")
-- do NOT start it not ddns-scripts version 2.x
if not verok then
return
end
-- no config create an empty one
if not nxfs.access("/etc/config/ddns") then
nxfs.writefile("/etc/config/ddns", "")
end
entry( {"admin", "services", "ddns"}, cbi("ddns/overview"), _("Dynamic DNS"), 59)
entry( {"admin", "services", "ddns", "detail"}, cbi("ddns/detail"), nil ).leaf = true
entry( {"admin", "services", "ddns", "hints"}, cbi("ddns/hints",
{hideapplybtn=true, hidesavebtn=true, hideresetbtn=true}), nil ).leaf = true
entry( {"admin", "services", "ddns", "global"}, cbi("ddns/global"), nil ).leaf = true
entry( {"admin", "services", "ddns", "logview"}, call("logread") ).leaf = true
entry( {"admin", "services", "ddns", "startstop"}, post("startstop") ).leaf = true
entry( {"admin", "services", "ddns", "status"}, call("status") ).leaf = true
end
-- function to read all sections status and return data array
local function _get_status()
local uci = UCI.cursor()
local service = SYS.init.enabled("ddns") and 1 or 0
local url_start = DISP.build_url("admin", "system", "startup")
local data = {} -- Array to transfer data to javascript
data[#data+1] = {
enabled = service, -- service enabled
url_up = url_start, -- link to enable DDS (System-Startup)
}
uci:foreach("ddns", "service", function (s)
-- Get section we are looking at
-- and enabled state
local section = s[".name"]
local enabled = tonumber(s["enabled"]) or 0
local datelast = "_empty_" -- formatted date of last update
local datenext = "_empty_" -- formatted date of next update
-- get force seconds
local force_seconds = DDNS.calc_seconds(
tonumber(s["force_interval"]) or 72 ,
s["force_unit"] or "hours" )
-- get/validate pid and last update
local pid = DDNS.get_pid(section)
local uptime = SYS.uptime()
local lasttime = DDNS.get_lastupd(section)
if lasttime > uptime then -- /var might not be linked to /tmp
lasttime = 0 -- and/or not cleared on reboot
end
-- no last update happen
if lasttime == 0 then
datelast = "_never_"
-- we read last update
else
-- calc last update
-- sys.epoch - sys uptime + lastupdate(uptime)
local epoch = os.time() - uptime + lasttime
-- use linux date to convert epoch
datelast = DDNS.epoch2date(epoch)
-- calc and fill next update
datenext = DDNS.epoch2date(epoch + force_seconds)
end
-- process running but update needs to happen
-- problems if force_seconds > uptime
force_seconds = (force_seconds > uptime) and uptime or force_seconds
if pid > 0 and ( lasttime + force_seconds - uptime ) <= 0 then
datenext = "_verify_"
-- run once
elseif force_seconds == 0 then
datenext = "_runonce_"
-- no process running and NOT enabled
elseif pid == 0 and enabled == 0 then
datenext = "_disabled_"
-- no process running and enabled
elseif pid == 0 and enabled ~= 0 then
datenext = "_stopped_"
end
-- get/set monitored interface and IP version
local iface = s["interface"] or "_nonet_"
local use_ipv6 = tonumber(s["use_ipv6"]) or 0
if iface ~= "_nonet_" then
local ipv = (use_ipv6 == 1) and "IPv6" or "IPv4"
iface = ipv .. " / " .. iface
end
-- try to get registered IP
local domain = s["domain"] or "_nodomain_"
local dnsserver = s["dns_server"] or ""
local force_ipversion = tonumber(s["force_ipversion"] or 0)
local force_dnstcp = tonumber(s["force_dnstcp"] or 0)
local command = [[/usr/lib/ddns/dynamic_dns_lucihelper.sh]]
command = command .. [[ get_registered_ip ]] .. domain .. [[ ]] .. use_ipv6 ..
[[ ]] .. force_ipversion .. [[ ]] .. force_dnstcp .. [[ ]] .. dnsserver
local reg_ip = SYS.exec(command)
if reg_ip == "" then
reg_ip = "_nodata_"
end
-- fill transfer array
data[#data+1] = {
section = section,
enabled = enabled,
iface = iface,
domain = domain,
reg_ip = reg_ip,
pid = pid,
datelast = datelast,
datenext = datenext
}
end)
uci:unload("ddns")
return data
end
-- called by XHR.get from detail_logview.htm
function logread(section)
-- read application settings
local uci = UCI.cursor()
local log_dir = uci:get("ddns", "global", "log_dir") or "/var/log/ddns"
local lfile = log_dir .. "/" .. section .. ".log"
local ldata = NXFS.readfile(lfile)
if not ldata or #ldata == 0 then
ldata="_nodata_"
end
uci:unload("ddns")
HTTP.write(ldata)
end
-- called by XHR.get from overview_status.htm
function startstop(section, enabled)
local uci = UCI.cursor()
local pid = DDNS.get_pid(section)
local data = {} -- Array to transfer data to javascript
-- if process running we want to stop and return
if pid > 0 then
local tmp = NX.kill(pid, 15) -- terminate
NX.nanosleep(2) -- 2 second "show time"
-- status changed so return full status
data = _get_status()
HTTP.prepare_content("application/json")
HTTP.write_json(data)
return
end
-- read uncommitted changes
-- we don't save and commit data from other section or other options
-- only enabled will be done
local exec = true
local changed = uci:changes("ddns")
for k_config, v_section in pairs(changed) do
-- security check because uci.changes only gets our config
if k_config ~= "ddns" then
exec = false
break
end
for k_section, v_option in pairs(v_section) do
-- check if only section of button was changed
if k_section ~= section then
exec = false
break
end
for k_option, v_value in pairs(v_option) do
-- check if only enabled was changed
if k_option ~= "enabled" then
exec = false
break
end
end
end
end
-- we can not execute because other
-- uncommitted changes pending, so exit here
if not exec then
HTTP.write("_uncommitted_")
return
end
-- save enable state
uci:set("ddns", section, "enabled", ( (enabled == "true") and "1" or "0") )
uci:save("ddns")
uci:commit("ddns")
uci:unload("ddns")
-- start dynamic_dns_updater.sh script
os.execute ([[/usr/lib/ddns/dynamic_dns_updater.sh %s 0 > /dev/null 2>&1 &]] % section)
NX.nanosleep(3) -- 3 seconds "show time"
-- status changed so return full status
data = _get_status()
HTTP.prepare_content("application/json")
HTTP.write_json(data)
end
-- called by XHR.poll from overview_status.htm
function status()
local data = _get_status()
HTTP.prepare_content("application/json")
HTTP.write_json(data)
end
|
